Lubricator



THOMAS R. HILL, CF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE UNITED STATES METALLIC PACKING COMPANY, OF PENNSYLVANIA.

LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 513,506, dated January 30, 1894.. Application filed Iy'ebruary 21, 18934 Serial No. 463,265. (No model.)

To all whom, it may concern.:

Be it known that I, THOMAS ROBY HILL, a citizen of the United States, residing in the city and county of Philadelphia, in the State of Pennsylvania, have invented new and useful Improvements in Oil-Cups, of which the following is a specification.

My invention relates to oil cups or lubricatorsof the class commonly used for oiling moving parts of machinery, and has for its object to cheapen the manufacture while promoting the lightness and durability of devices of this character.

The invention will first be described and then will be particularly defined in claim hereinafter set forth.

Reference is to be had to the accompanying drawings, forming a part of this specification and in which similar letters of reference indicate like parts in all the figures.

Figure l, shows my improved oil cup in central vertical section taken on the line sc, x, in Fig. 2, and represents the cup on a steam engine cylinder, shown only in part and to illustrate how the cup is attached and is adapted to lubricate the piston rod. Fig. 2, is a side elevation, drawn to a smaller scale, of the oil cup, cylinder and piston rod, and Fig. 3, is a rear or inner side'perspective View of the combined attaching base or bracket and feed tube or stem of the lnbricator and the fastening nut.

The oil reservoir or body portion A, of the cup, which is made in one piece as hereinafter more fully explained, has at its bottom an aperture a, through which projects upwardly the feed tube or stem B, which I cast or form integral or in one piece with the attaching bracket or base C, of the device.

At the junction of the feed tube and bracket is formed an intermediate stud or post portion h, which is somewhat larger in diameter than the feed tube B, and may be considered a part thereof while it forms a shoulder b', on which the cup body A, rests prior to running a nut D, onto the exteriorly threaded stem and down upon the inner face of the bottom of the cup body, to hold the latter securely to the feed tube and attaching base or bracket. The tightened nut may be brazed or soldered to the cup body and also to the tube, if desired.

. The feed tube B, and stud h, have the usual longitudinal bore or channel with lower lateral passages leading thereto from the interior of oupbody, to allow escape or feed of oil from the body or reservoir under control of an ordinary needle or plug valve E, which is threaded into the head of the feed tube and is adapted to be closed to a seat e, formed within the tube when the feed of oil from the cup is to be cut off. The valve has at its head a cross pin e', serving as a handle by which to turn it by hand, for regulating the feed of oil from the cup, and a spiral spring F,I on the feed tube expands between the end of the tube and the handle or head of the valve to prevent accidental shifting of the valve when or after it is set properly.

The combined or integral oil feed tube and bracket B, C, is provided with a laterally projecting base portion-or lip c, which, when the oil cup is to be attached to a steam engine cylinder G, or to its head g, is given a concaved bottom face fitting the cylinder or its head and to which the oil cup may be held by screws or bolts c', orin any other approved manner, and whereby the oil fed from the cup past its open valve E, will drop through the bore or passage, which is continued through the base or bracket, and upon the rod H, of the engine piston to lubricate the rod and the metallic or other packing in the stuffing box g', in which `it reciprocates.

The base or bracket may have a fiat bottom face adapting it for attachment to a flat surface adjacent to any moving part of machinery or above a swab cup, to feed, oil thereto as may be required. The lower somewhat enlarged portion of the oilpassage through the stud b, and base C, is internally screwthreaded to allow attachment of the oil cup to a pipe, or of a pipe to the cup, when desirable or necessary.

By making the feed tube or stem and the attaching base or bracket integral or in one piece first cast or molded and then finished, I not only lessen the expense ot manufacture, but I produce a stronger cup as awhole, than when the feed tube and stem are made sepa- IOO rately and afterward finished and connected by screw-threads or otherwise.

Another feature promoting economy of manufacture, lightness and durability of the cup, consists in making its body portion A, with the lower concaved or downwardly tapering portion a', the upper part a2, which receives the cup lid or cover A', and the intermediate stiffenin g bead a3, which also forms a stop and support to the cover, of one piece 0f sheet metal, struck or drawn up to the form substantially as shown in the drawings.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- The combination with an engine cylinder and piston thereof; of an oil cup therefor secured to said cylinder in such a manner as to extend outwardly and over the piston rod; said cup consisting of a base having a horizontally-extending bracket formed integral therewith, and provided with lateral perforations and a centrally-contracted perforation; a removable oil receptacle secured to and receiving a portion of said base; and springheld means to regulate the iiow of oil through the said lateral and vertical perforations of the intruding base.

In testimony whereof I affix my signature in the presence of two witnesses.

THOMAS R. HILL. Witnesses:

J oHN RoDGERs, FRANK H. BOHEN. 

